Influence of the steeped spillway slope on the number of optimal steps

In the present study 54 step spillways make of ple Glass, 5 discharges (10, 20, 30, 40 and 50 l/s/m) and 3 slopes, z=1.7 , z=2 and z=2.5 (totally 275 experiments were conducted). Finding of the present study are as follows: 1- Performed modeling observations revealed that the relative energy dissipa...

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Main Authors: Siavash Heydari orojlo, Seyed Habib Mousavi Jahromi, Arash Adib
Format: Article
Language:fas
Published: Shahid Chamran University of Ahvaz 2010-10-01
Series:علوم و مهندسی آبیاری
Subjects:
Online Access:http://jise.scu.ac.ir/article_13484_dd1bb5f71369ad4e999b454fa04ef44b.pdf
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author Siavash Heydari orojlo
Seyed Habib Mousavi Jahromi
Arash Adib
author_facet Siavash Heydari orojlo
Seyed Habib Mousavi Jahromi
Arash Adib
author_sort Siavash Heydari orojlo
collection DOAJ
description In the present study 54 step spillways make of ple Glass, 5 discharges (10, 20, 30, 40 and 50 l/s/m) and 3 slopes, z=1.7 , z=2 and z=2.5 (totally 275 experiments were conducted). Finding of the present study are as follows: 1- Performed modeling observations revealed that the relative energy dissipation along with spillway will be decreased with increasing discharge. 2- It is shown that energy dissipation is increase with increasing step numbers, but energy dissipation will be stopped in a certain number of steps. 3- According to presented study, optimal number of steps base on different values of yc/h and Froude Number is determined for the maximum energy dissipation. It is shown that optimal number of steps is affected by slope of spillway. Increasing spillway slope causes more energy dissipation.
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spelling doaj.art-d23063d5cf4745f8a8722b5106dc30fa2022-12-21T20:33:55ZfasShahid Chamran University of Ahvazعلوم و مهندسی آبیاری2588-59522588-59602010-10-0133212714010.22055/jise.2010.1348413484Influence of the steeped spillway slope on the number of optimal stepsSiavash Heydari orojlo0Seyed Habib Mousavi Jahromi1Arash Adib2M.Sc. graduate, Department of Water Science Engineering, Shahid Chamran University, AhvazAssociate Professor Water Science Engineering Faculty, Shahid Chamran University, AhvazAssistant Professor, Civil Engineering Department, Shahid Chamran University, AhvazIn the present study 54 step spillways make of ple Glass, 5 discharges (10, 20, 30, 40 and 50 l/s/m) and 3 slopes, z=1.7 , z=2 and z=2.5 (totally 275 experiments were conducted). Finding of the present study are as follows: 1- Performed modeling observations revealed that the relative energy dissipation along with spillway will be decreased with increasing discharge. 2- It is shown that energy dissipation is increase with increasing step numbers, but energy dissipation will be stopped in a certain number of steps. 3- According to presented study, optimal number of steps base on different values of yc/h and Froude Number is determined for the maximum energy dissipation. It is shown that optimal number of steps is affected by slope of spillway. Increasing spillway slope causes more energy dissipation.http://jise.scu.ac.ir/article_13484_dd1bb5f71369ad4e999b454fa04ef44b.pdfstepped spillwaymaximum energy dissipationnumber of optimal stepphysical modeling
spellingShingle Siavash Heydari orojlo
Seyed Habib Mousavi Jahromi
Arash Adib
Influence of the steeped spillway slope on the number of optimal steps
علوم و مهندسی آبیاری
stepped spillway
maximum energy dissipation
number of optimal step
physical modeling
title Influence of the steeped spillway slope on the number of optimal steps
title_full Influence of the steeped spillway slope on the number of optimal steps
title_fullStr Influence of the steeped spillway slope on the number of optimal steps
title_full_unstemmed Influence of the steeped spillway slope on the number of optimal steps
title_short Influence of the steeped spillway slope on the number of optimal steps
title_sort influence of the steeped spillway slope on the number of optimal steps
topic stepped spillway
maximum energy dissipation
number of optimal step
physical modeling
url http://jise.scu.ac.ir/article_13484_dd1bb5f71369ad4e999b454fa04ef44b.pdf
work_keys_str_mv AT siavashheydariorojlo influenceofthesteepedspillwayslopeonthenumberofoptimalsteps
AT seyedhabibmousavijahromi influenceofthesteepedspillwayslopeonthenumberofoptimalsteps
AT arashadib influenceofthesteepedspillwayslopeonthenumberofoptimalsteps